Subtraction
Addition
Perimeter
Estimate
100

12, 999 - 10,444= ______

2,555

100

7, 421+ 10, 512=______

17,933

100

Omar has a rug shaped like a rectangle. The rug measures 4 feet long and 2 feet wide. Write an equation and solve the perimeter. 

4+2+4+2= 10 feet long.

100

Make an estimate for 23,499 + 49,500 rounded to the nearest ten thousand. Write an expression and solve. 

20,000 + 50,000 =70,000 

200

682, 741-95,126= ______

587,615

200

121,420 + 100,491= ____

221, 911

200

The length of a square is 5 feet. What is the perimeter? 

20 feet

200

What is the estimated sum of 23,400 and 49,500 rounded to the nearest ten thousand?

70,000

300

The total attendance for a fair last year was 140, 573. The total attendance this year was 64, 865. How many fewer people attended the fair this year than last year?

75,708 fewer people attended the fair this year.

300

7,218+ 32, 849 =_______

40,067

300

The width of a field is 12 yards, and the length is 2 yards longer than the width.

What is the perimeter of the field in yards?

52 yards 

300

Lola has a goal of reading 2, 050 pages. She reads 470 pages the first month. Lola writes the expression 2,100 + 500 to estimate how many more pages, is that correct? If not, what should she do?

(Rounding to the nearest hundred)

2,100-500 = 1,600 pages left.